CN102177083B - Lift appliance - Google Patents
Lift appliance Download PDFInfo
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- CN102177083B CN102177083B CN200880131508.8A CN200880131508A CN102177083B CN 102177083 B CN102177083 B CN 102177083B CN 200880131508 A CN200880131508 A CN 200880131508A CN 102177083 B CN102177083 B CN 102177083B
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- car
- door
- braking force
- speed
- relay
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
- B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
- B66B1/32—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on braking devices, e.g. acting on electrically controlled brakes
Abstract
A kind of lift appliance, by stopping being energized to the restraining coil of brake equipment, produces the braking force to car, by restraining coil energising, stops producing the braking force to car.Braking force control system has: the 1st brak control unit, its braking force controlling car to the turn on angle of restraining coil by adjustment; 2nd brak control unit, it can force to stop being energized to restraining coil.2nd brak control unit has multiple computer unit, and according to the information from predetermined detecting unit, the plurality of computer unit judges that elevator has independently without exception, when being judged to be abnormal elevator, carries out stopping the control to restraining coil energising.
Description
Technical field
The present invention relates to lift appliance, this lift appliance utilizes braking force control system to control the braking force braked car.
Background technology
Usually when elevator there occurs abnormal, utilize the braking force of drg to brake car, car is slowed down and stops.Proposed a kind of brake device for elevator in the past, and in order to reduce the impact when the deceleration based on braking maneuver stops to car, the braking force of drg being controlled, makes the deceleration/decel of car reach predetermined value.The control of the braking force of drg is undertaken by comparing the output of speed detector and deceleration instruction value, and this speed detector detects the speed (with reference to patent documentation 1) making the car drive motor of car movement.
Patent documentation 1: Japanese Unexamined Patent Publication 7-157211 publication
But, in above-mentioned brake device for elevator in the past, car when utilizing common braking force control system to carry out exception slow down stop controlling and usually time car slow down and stop controlling, therefore, when braking force control system breaks down, when needing the abnormal elevator making car stop, drg likely can not be utilized to force car is stopped.In addition, although stopped by the deceleration utilizing multiple braking force control system to control car, the reliability that car stops controlling can be improved, cause structure to become complicated.
Summary of the invention
The present invention proposes to solve the problem just, its object is to, and provides a kind of lift appliance, car can be stopped more reliably when abnormal elevator, and, the complex structure of braking force control system can be suppressed.
Lift appliance of the present invention has: car, and it can move in hoistway; Brake equipment, it has restraining coil, produces by stopping restraining coil energising the braking force braked car, by stopping producing braking force to restraining coil energising; And braking force control system, it has the 1st brak control unit and the 2nd brak control unit, 1st brak control unit carries out the control of braking force to the turn on angle of restraining coil by adjustment, 2nd brak control unit comprises multiple arithmetic element, according to the information from predetermined detecting unit, the plurality of arithmetic element judges that elevator has independently without exception, when being judged to be abnormal elevator, carry out stopping the control to restraining coil energising.
Accompanying drawing explanation
Fig. 1 is the constructional drawing of the lift appliance representing embodiments of the present invention 1.
Fig. 2 is the constructional drawing of the braking force control system representing Fig. 1.
Fig. 3 is the diagram of circuit of the calculation process of the 1st brak control unit of instruction diagram 2.
Fig. 4 is the diagram of circuit of the calculation process of the 1st computer unit of instruction diagram 2.
Fig. 5 is the speed of car for Fig. 1, the acceleration/accel of car, the state of the adjustment switch of Fig. 2 and the state of the 1st relay tip, the diagram of curves of time variations when representing running usually respectively.
Fig. 6 is the speed of car for Fig. 1, the acceleration/accel of car, the state of the adjustment switch of Fig. 2 and the state of the 1st relay tip, the diagram of curves of the time variations when acceleration/accel being illustrated respectively in car occurs abnormal.
Detailed description of the invention
Below, with reference to accompanying drawing, the preferred embodiment of the present invention is described.
Embodiment 1
Fig. 1 is the constructional drawing of the lift appliance representing embodiments of the present invention 1.In the drawings, in hoistway 1, suspension unit 4 is utilized to suspended on car 2 and counterweight 3.Suspension unit 4 can adopt such as rope, band (belt) etc.The towing machine (actuating device) 5 and deflector wheel 6 that make car 2 and counterweight 3 movement is provided with on the top of hoistway 1.
The driving rope sheave 8 that towing machine 5 is had motor 7 and rotated by motor 7.Suspension unit 4 is wound on and drives on rope sheave 8 and deflector wheel 6.By driving rope sheave 8 to rotate, car 2 and counterweight 3 are mobile in hoistway 1.
Be provided with car gangway 9 at car 2 and car gangway 9 carried out to a pair car door 10 of opening and closing.Each car door 10 by the propulsive effort of door drive being installed on car 2, the displacement between position and the opening position that car gangway 9 is opened of closing the door that car gangway 9 is being closed.
Be provided with landing doorway at the stop of each floor and landing doorway carried out to a pair stop door (all not shown) of opening and closing.In hoistway 1, the moving direction about car 2 is set with predetermined open the door the close the door interval corresponding with the position of each stop.Car 2 be positioned at can open the door close the door interval time, car door 10 can close about horizontal direction and stop badge.Therefore, car 2 be positioned at can open the door close the door interval time, by making car door in displacement between position and opening position of closing the door, stop door engages relative to landing doorway displacement with car door.Engage displacement by stop door with car door, landing doorway is opened/closed.Car 2 be positioned at can open the door close the door outside interval time, the engaging of car door 10 and stop door can not be carried out.
The brake equipment 11 to driving the rotation of rope sheave 8 to brake is provided with at towing machine 5.Brake equipment 11 has: brake disc (swivel) 12, and it rotates integratedly with driving rope sheave 8; Brake component 13, it can to the direction displacement contacting/leave with brake disc 12; Retarding spring (force body), it exerts a force to the direction connected with brake disc 12 to brake component 13; And restraining coil, it resists the force of retarding spring, makes brake component 13 to the direction displacement leaving brake disc 12.
Stop restraining coil being energized time, brake component 13 by retarding spring force and contact with brake disc 12.Contacted with brake disc 12 by brake component 13, the rotation of brake disc 12 is braked.The braking force that car 2 is braked is produced by braking the rotation of brake disc 12.Further, by being energized to restraining coil, brake component 13 resists the force of retarding spring, to the direction displacement leaving brake disc 12.Along with brake component 13, brake disc 12 is left to the generation of the braking force that car 2 is braked and stops.
The 1st speed detector (detecting unit) the 14 and the 2nd speed detector (detecting unit) 15 detecting the rotative speed driving rope sheave 8 is independently provided with at motor 7.The speed of car 2 calculates according to the information from the 1st speed detector 14, the 2nd speed detector 15.1st speed detector 14, the 2nd speed detector 15 such as can enumerate coder etc.
Be provided with at car 2 and detect the detector of closing the door (detecting unit) 16 whether car door 10 is positioned at position of closing the door.Further, be provided with car position detector (detecting unit) 17 in hoistway 1, this car position detector 17 detects car 2 and whether is positioned at interval of closing the door of can opening the door.Car position detector 17 such as can adopt detector, and this detector has: the moving direction along car 2 is fixed on the plate of the inwall of hoistway 1; And be installed on car 2, only car 2 be positioned at can open the door close the door interval time check-out console plate detecting sensor.
Information from the 1st speed detector 14, the 2nd speed detector 15 is sent to the control device for running the engine 18 controlling elevator running.The braking force control system 19 of the action controlling brake equipment 11 is sent to respectively from the information of the 1st speed detector 14, the 2nd speed detector 15, close the door detector 16 and car position detector 17.
Control device for running the engine 18 is powered to motor 7 when making car 2 move, and, export to braking force control system 19 and stop producing the attraction instruction to the braking force of car 2 and relay driving instruction.Further, control device for running the engine 18, according to the information from the 1st speed detector 14, the 2nd speed detector 15, judges that the acceleration/accel of car 2 has without exception, when being judged to be that the acceleration/accel of car 2 has abnormal, stops exporting to braking force control system 19 attracting instruction.In addition, control device for running the engine 18 obtains the speed of car 2 according to the information from the 1st speed detector 14, the 2nd speed detector 15, when car 2 stops (that is, when the speed of car 2 is 0), stop to braking force control system 19 output relay driving instruction.
Braking force control system 19, according to respectively from the information of the 1st speed detector 14, the 2nd speed detector 15, detector 16 of closing the door, car position detector 17 and control device for running the engine 18, controls the action of brake equipment 11.
Fig. 2 is the constructional drawing of the braking force control system 19 representing Fig. 1.In the drawings, the restraining coil of brake equipment 11 has multiple (being two the in this example) electromagnetic coil portion 20,21 be connected in parallel with each other.Braking force control system 19 has: adjustment switch 22, and it can adjust the turn on angle to each electromagnetic coil portion 20,21; 1st brak control unit 23, it controls the action of adjustment switch 22; 1st relay 24 and the 2nd relay 25 (multiple relay 24,25), it can force to stop the energising to each electromagnetic coil portion 20,21; And the 2nd brak control unit 26, it controls the action of the 1st relay 24, the 2nd relay 25.
1st relay 24 has the 1st relay coil 24a and according to the 1st relay tip 24b of opening and closing to the energising control of the 1st relay coil 24a.2nd relay 25 has the 2nd relay coil 25a and according to the 2nd relay tip 25b of opening and closing to the energising control of the 2nd relay coil 25a.
The adjustment of the energising of the 1st relay coil 24a is carried out according to the on-off action (On/Off action) of the 1st relay switch 27 as semiconductor switch.1st relay coil 24a and the 1st relay switch 27 be connected in series in power supply 29 and grounding parts () between 30.
The adjustment of the energising of the 2nd relay coil 25a is carried out according to the on-off action (On/Off action) of the 2nd relay switch 28 as semiconductor switch.2nd relay coil 25a and the 2nd relay switch 28 are connected in series between power supply 29 and grounding parts 30.
Comprise the restraining coil of each electromagnetic coil portion 20,21, adjustment switch 22, the 1st relay tip 24b and the 2nd relay tip 25b to be connected in series between power supply 29 and grounding parts 30.In this example, the 1st relay tip 24b is connected between restraining coil and power supply 29, and the 2nd relay tip 25b and adjustment switch 22 are connected between restraining coil and grounding parts 30.
Adjustment switch 22 is semiconductor switchs.When the 1st relay tip 24b and the 2nd relay tip 25b closes, repeatedly carry out the on-off action (On/Off action) of adjustment switch 22, thus, utilize adjustment switch 22 to adjust turn on angle to each electromagnetic coil portion 20,21.To the braking force of car 2 be by adjustment the turn on angle of each electromagnetic coil portion 20,21 is adjusted.By making at least any one party in the 1st relay tip 24b and the 2nd relay tip 25b carry out disconnection action, force to stop the energising to each electromagnetic coil portion 20,21.
In addition, between power supply 29 and adjustment switch 22, discharge diode 31 is connected with.Discharge diode 31 protects adjustment switch 22 can not be subject to the impact of inverse voltage; described inverse voltage is under the closed state of the 1st relay tip 24b, the 2nd relay tip 25b; adjustment switch 22 carries out resolving and starts when doing, and results from each electromagnetic coil portion 20,21.Further, at each the 1st relay tip 24b be connected with the discharge diode 32 and discharging resistance 33 that are connected in series between the 2nd relay tip 25b and restraining coil.Discharge diode 32 and discharging resistance 33 at least any one party consumed in the 1st relay tip 24b, the 2nd relay tip 25b carries out resolving the anti-electronic heat of starting and producing when doing, and makes to reduce rapidly the turn on angle of each electromagnetic coil portion 20,21.
The attraction instruction of self-operating control setup 18 and the signal from the 1st speed detector 14 is sent to the 1st brak control unit 23.1st brak control unit 23, according to the information respectively from control device for running the engine 18 and the 1st speed detector 14, controls the action of adjustment switch 22.Thus, adjust the turn on angle to each electromagnetic coil portion 20,21, control the braking force to car 2.
Specifically, the 1st brak control unit 23, when receiving the attraction instruction from control device for running the engine 18, carries out stopping producing the control to the braking force of car 2 to adjustment switch 22.That is, the 1st brak control unit 23 is when receiving the attraction instruction from control device for running the engine 18, carries out adjusting to the turn on angle of each electromagnetic coil portion 20,21 with the control making brake component 13 leave brake disc 12.Further, the 1st brak control unit 23, according to the information from the 1st speed detector 14, obtains the acceleration/accel of car 2, the value of the acceleration/accel obtained and predetermined threshold alpha L (negative value) is compared, and controls the action of adjustment switch 22.1st brak control unit 23 when the deceleration/decel (negative acceleration/accel) of car 2 exceedes threshold alpha L (, when the acceleration/accel of car 2 is lower than threshold alpha L), adjust the braking force to car 2 by the action controlling adjustment switch 22, carry out the control acceleration/accel of car 2 being remained threshold alpha L.
2nd brak control unit 26 has the 1st computer unit (arithmetic element) the 34, the 2nd computer unit (arithmetic element) 35, shared storage (storage part) 36 and fault detection unit 37.
Send respectively from the signal of the 1st speed detector 14, close the door detector 16 and car position detector 17 and the relay driving instruction from control device for running the engine 18 to the 1st computer unit 34.1st computer unit 34, according to respectively from the information of the 1st speed detector 14, detector 16 of closing the door, car position detector 17 and control device for running the engine 18, controls the action of the 1st relay switch 27, and controls the action of the 1st relay tip 24b.
Specifically, 1st computer unit 34 is when receiving the relay driving instruction from control device for running the engine 18,1st relay switch 27 is carried out to the control of the closed action of maintenance the 1st relay tip 24b, when the reception of relay driving instruction stops, the 1st relay switch 27 is carried out to the control of the disconnection action of execution the 1st relay tip 24b.Further, the 1st computer unit 34, according to respectively from the information of the 1st speed detector 14, close the door detector 16 and car position detector 17, judges that elevator has without exception.1st computer unit 34 is when being judged to be that elevator does not have exception, 1st relay switch 27 is carried out to the control of the closed action of maintenance the 1st relay tip 24b, when being judged to be abnormal elevator, the 1st relay switch 27 is carried out to the control of the disconnection action of execution the 1st relay tip 24b.
1st computer unit 34 to outpace limits value V in the speed of car 2 obtained according to the information from the 1st speed detector 14
limtime, be judged to be abnormal elevator.Further, the 1st computer unit 34 according to the information coming self-closing door detector 16 and car position detector 17 respectively, be judged to be the position deviation of car door 10 close the door position state under car 2 be positioned at can open the door close the door outside interval time, be judged to be abnormal elevator.
Speed limit V
limset by the acceleration/accel of the car 2 obtained according to the information from the 1st speed detector 14 and threshold alpha L are compared.That is, when the acceleration/accel of car 2 is more than threshold alpha L, by speed limit V
limbe set to predetermined setting value V
max, at the acceleration/accel of car 2 lower than (that is, when the deceleration/decel of car 2 exceedes threshold alpha L) during threshold alpha L, by speed limit V
limbe set to along with the time passes through and the decreasing value of reduction.
Send respectively from the signal of the 2nd speed detector 15, close the door detector 16 and car position detector 17 and the relay driving instruction from control device for running the engine 18 to the 2nd computer unit 35.2nd computer unit 35 is according to respectively from the information of the 2nd speed detector 15, detector 16 of closing the door, car position detector 17 and control device for running the engine 18, control the action of the 2nd relay switch 28, and carry out the action control of the 2nd relay tip 25b.The process of the 2nd computer unit 35 is identical with the process of the 1st computer unit 34.
Specifically, 2nd computer unit 35 is when receiving the relay driving instruction from control device for running the engine 18,2nd relay switch 28 is carried out to the control of the closed action of maintenance the 1st relay tip 25b, when the reception of relay driving instruction stops, the 2nd relay switch 28 is carried out to the control of the disconnection action of execution the 2nd relay tip 25b.Further, the 2nd computer unit 35, according to respectively from the information of the 2nd speed detector 15, close the door detector 16 and car position detector 17, judges that elevator has without exception.2nd computer unit 35 is when being judged to be that elevator does not have exception, 2nd relay switch 28 is carried out to the control of the closed action of maintenance the 2nd relay tip 25b, when being judged to be abnormal elevator, the 2nd relay switch 28 is carried out to the control of the disconnection action of execution the 2nd relay tip 25b.
2nd computer unit 35 to outpace limits value V in the speed of car 2 obtained according to the information from the 2nd speed detector 15
limtime, be judged to be abnormal elevator.Further, the 2nd computer unit 35 according to the information coming self-closing door detector 16 and car position detector 17 respectively, be judged to be the position deviation of car door 10 close the door position state under car 2 be positioned at can open the door close the door outside interval time, be judged to be abnormal elevator.
Speed limit V
limset by the acceleration/accel of the car 2 obtained according to the information from the 2nd speed detector 15 and threshold alpha L are compared.That is, when the acceleration/accel of car 2 is more than threshold alpha L, by speed limit V
limbe set to predetermined setting value V
max, at the acceleration/accel of car 2 lower than (that is, when the deceleration/decel of car 2 exceedes threshold alpha L) during threshold alpha L, by speed limit V
limbe set to along with the time passes through and the decreasing value of reduction.
That is, the 1st computer unit 34 and the 2nd computer unit 35 judge that elevator has without exception independently, when being judged to be abnormal elevator, carry out the control stopping being energized to each electromagnetic coil portion 20,21.
The respective result of the 1st computer unit 34, the 2nd computer unit 35 is stored at shared storage 36.1st computer unit 34, the 2nd computer unit 35 obtain the respective result of the 1st computer unit 34, the 2nd computer unit 35 independently from shared storage 36, the result obtained is compared, judges that braking force control system 19 has trouble free thus.1st computer unit 34, the 2nd computer unit 35, after having carried out fault verification, export breakdown signal to fault detection unit 37.Thus, can any one party in the 1st computer unit 34, the 2nd computer unit 35 when there occurs fault, detect et out of order.
Fault detection unit 37, when receiving breakdown signal, carries out the control of execution the 1st relay tip 24b and the 2nd relay tip 25b disconnection action separately to the 1st relay switch 27 and the 2nd relay switch 28.
Below, the calculation process of the 1st brak control unit 23 is described.Fig. 3 is the diagram of circuit of the calculation process that the 1st brak control unit 23 is described.The computing of the 1st brak control unit 23 carries out according to each predetermined cycle.1st brak control unit 23 determines whether it has received the attraction instruction (S1) from control device for running the engine 18 according to each execution cycle.
When the 1st brak control unit 23 is judged to receive attraction instruction, 1st brak control unit 23 adjusts the turn on angle to each electromagnetic coil portion 20,21, adjustment switch 22 is removed to the control (S2) of the braking force to car 2, terminate the computing in this cycle.Thus, stop producing the braking force to car 2.Now, by repeatedly carrying out the On/Off action of adjustment switch 22, the turn on angle to each electromagnetic coil portion 20,21 is adjusted.
When the 1st brak control unit 23 does not receive attraction instruction, the 1st brak control unit 23 judges that whether the acceleration/accel of the car 2 obtained according to the information from the 1st speed detector 14 is lower than threshold alpha L (S3).
When the acceleration/accel of car 2 is lower than threshold alpha L, in order to avoid the abrupt deceleration of car 2,1st brak control unit 23 carries out to adjustment switch 22 control (deceleration-based controller) (S4) that the acceleration/accel of car 2 remained threshold alpha L, terminates the computing in this cycle.Now, by repeatedly carrying out the On/Off action of adjustment switch 22, the turn on angle to each electromagnetic coil portion 20,21 is adjusted.
When the acceleration/accel of car 2 is greater than threshold alpha L, in order to produce the braking force to car 2, the 1st brak control unit 23 carries out the control (S5) of the Off action performing adjustment switch 22, terminates the computing in this cycle.
Below, the calculation process of the 1st computer unit 34 in the 2nd brak control unit 26 is described.Fig. 4 is the diagram of circuit of the calculation process of the 1st computer unit 34 of instruction diagram 2.The computing of the 1st computer unit 34 carries out according to each predetermined cycle.In addition, the computing of the 2nd computer unit 35 is identical with the computing of the 1st computer unit 34.
According to each execution cycle, 1st computer unit 34 judges that the speed of car 2 is whether as 0 (S11).When the speed of car 2 is 0, the time t of timer is reset to 0 by the 1st computer unit 34, and, by speed limit V
limbe set to predetermined setting value V
max, carry out variable initializer show process (S12) thus.Then, the 1st computer unit 34 determines whether it has received the relay driving instruction (S13) from control device for running the engine 18.
When receiving relay driving instruction, the 1st computer unit 34 carries out the control (S14) of the closed action (On action) of execution the 1st relay tip 24b to the 1st relay switch 27, terminate the computing in this cycle.
When not receiving relay driving instruction, 1st computer unit 34 carries out the control (S15) of the disconnection action (Off action) of execution the 1st relay tip 24b to the 1st relay switch 27, terminate the computing in this cycle.
On the other hand, when the speed of car 2 is not 0, the 1st computer unit 34 to determine whether under the state (door opening state) departing from position of closing the door at car door 10 that car 2 is positioned to open the door and closes the door (S16) outside interval.
When car 2 be positioned under door opening state can open the door close the door outside interval when, in order to produce the braking force to car 2,1st computer unit 34 carries out the control (S15) of the disconnection action of execution the 1st relay tip 24b to the 1st relay switch 27, terminate the computing in this cycle.
When car door 10 be positioned at close the door position or car 2 be positioned at can open the door close the door interval when, the 1st computer unit 34 judges whether the absolute value of the speed of car 2 is less than speed limit V
lim(S17).
Be speed limit V at the absolute value of the speed of car 2
limwhen above, the 1st computer unit 34 carries out the control (S15) of the disconnection action of execution the 1st relay tip 24b to the 1st relay switch 27, terminate the computing in this cycle.
Speed limit V is less than at the absolute value of the speed of car 2
limwhen, the 1st computer unit 34 judges that the time t of timer is whether as 0 (S18).
When the time t of timer is 0, the 1st computer unit 34 judges whether the acceleration/accel of car 2 is greater than threshold alpha L (S19).As a result, when the acceleration/accel of car 2 is greater than threshold alpha L, the 1st computer unit 34 carries out the control (S14) of the closed action of execution the 1st relay tip 24b to the 1st relay switch 27, terminate the computing in this cycle.And, when the acceleration/accel of car 2 is below threshold alpha L, the time t of timer is set to (t+1) (S20) by the 1st computer unit 34, then the 1st relay switch 27 is carried out to the control (S14) of the closed action of execution the 1st relay tip 24b, terminate the computing in this cycle.
On the other hand, when the time t of timer is not 0, the 1st computer unit 34 judges whether the time t of timer is greater than the setting-up time t preset
max(S21).
Be setting-up time t at the time t of timer
maxwhen following, the time t of timer is set to (t+1) (S20) by the 1st computer unit 34, then the 1st relay switch 27 is carried out to the control (S14) of the closed action of execution the 1st relay tip 24b, terminate the computing in this cycle.
Setting-up time t is greater than at the time t of timer
maxwhen, by speed limit V
limbe set to (V
lim-V1) (S22), then the 1st relay switch 27 is carried out to the control (S14) of the closed action of execution the 1st relay tip 24b, terminate the computing in this cycle.In addition, V1 is the fixed value preset.Thereby, it is possible to by speed limit V
limbe set to along with the time passes through and the value of reduction.
Below, time variations during the usual running of the state of the acceleration/accel of the speed of car 2, car 2, the state of adjustment switch 22 and the 1st relay tip 24b is described.Fig. 5 is the speed of car 2 for Fig. 1, the acceleration/accel of car 2, the state of the adjustment switch 22 of Fig. 2 and the state of the 1st relay tip 24b, the diagram of curves of time variations when representing running usually respectively.When usually operating, the acceleration/accel of car 2 remains on more than threshold alpha L (that is, not producing the abrupt deceleration of car 2) ((b) of Fig. 5), thus adjustment switch 22 is removed to the control of the braking force to car.Now, adjustment switch 22 carries out On/Off action repeatedly, adjusts the turn on angle to each electromagnetic coil portion 20,21 thus.
In addition, in order to adjust the turn on angle to each electromagnetic coil portion 20,21, be actually the On/Off action repeatedly carrying out adjustment switch 22, but in (c) of Fig. 5, eliminate the On/Off action of adjustment switch 22.Further, when usually operating, the speed of car 2 remains lower than speed limit V
maxvalue ((a) of Fig. 5), thus the 1st relay switch 27 is carried out to the control of the closed action of execution the 1st relay tip 24b.
, illustrate when car 2 is a significant slowdown below, the speed of car 2, the acceleration/accel of car 2, the adjustment time variations of the state of switch 22 and the state of the 1st relay tip 24b.Fig. 6 is the speed of car 2 for Fig. 1, the acceleration/accel of car 2, the state of the adjustment switch 22 of Fig. 2 and the state of the 1st relay tip 24b, represents the diagram of curves of the time variations when acceleration/accel of car 2 occurs abnormal respectively.
When occurring abnormal at moment t1 elevator, stop exporting from control device for running the engine 18 to braking force control system 19 attracting instruction and the energising to motor 7.Thus, the speed of car 2 and acceleration/accel are due to car 2 and the overbalance of counterweight 3 temporarily rise ((a) of Fig. 6 and (b) of Fig. 6).Then, adjustment switch 22 carries out disconnection action, stops being energized to each electromagnetic coil portion 20,21.Thus, car 2 is a significant slowdown, the acceleration/accel of car 2 at moment t2 lower than threshold alpha L.
When the acceleration/accel of car 2 is lower than threshold alpha L, by the control of braking force control system 19, repeatedly carry out the on-off action ((c) of Fig. 6) of adjustment switch 22, the acceleration/accel of car 2 remains threshold alpha L ((b) of Fig. 6).Now, in the time from moment t2 through setting-up time t
maxtime, speed limit V
limvalue be set to along with the time through and from setting value V
maxthe value reduced.
The speed of car 2 remains speed limit V
limbelow, car 2 is when moment t3 reaches enough low low speed, and stop the on-off action repeatedly of adjustment switch 22, the state of adjustment switch 22 remains off-state (Off state) ((c) of Fig. 6).
Then, when car 2 is when the moment, t4 stopped completely, stop from control device for running the engine 18 to braking force control system 19 output relay driving instruction ((d) of Fig. 6).Thus, the 1st relay tip 24b, the 2nd relay tip 25b carry out disconnection action respectively.
When car 2 moves, the speed of car 2 outpaces limits value V
limwhen, no matter whether from control device for running the engine 18 output relay driving instruction, at least one party in the 1st relay tip 24b, the 2nd relay tip 25b carries out disconnection action according to the control of braking force control system 19.Thus, force to stop, to the energising of each electromagnetic coil portion 20,21, producing the braking force to car 2.
In this lift appliance, be provided with at braking force control system 19: the 1st brak control unit 23, it controls the turn on angle to each electromagnetic coil portion 20,21, 2nd brak control unit 26, it comprises multiple computer unit 34, 35, the plurality of computer unit 34, 35 judge that elevator has without exception independently, when being judged to be abnormal elevator, carry out stopping each electromagnetic coil portion 20, the control of the energising of 21, thus each computer unit 34 can be utilized, 35 monitor that elevator has without exception independently, at each computer unit 34, when any one party in 35 or the 1st brak control unit 23 et out of order, also can by the control of remaining normal computer unit, make car 2 stop more reliably when abnormal elevator.Further, the reliability not needing the stopping in order to improve car 2 to control and arrange multiple braking force control system, thus can suppress the complex structure of braking force control system 19.
Further, when the deceleration/decel of car 2 exceedes threshold alpha L, each computer unit 34,35 generates along with the time passes through and the speed limit V of reduction
lim, to outpace limits value V in the speed of car 2
limtime, carry out the control of the energising stopped each electromagnetic coil portion 20,21, thus can, in the exception of the speed of the lower phase judgement car 2 of the speed of car 2, can car 2 be made when abnormal elevator more reliably to stop.
And, each computer unit 34,35 be judged to be the position deviation of car door 10 close the door position state under car 2 be positioned at can open the door close the door outside interval time, carry out the control of the energising stopped each electromagnetic coil portion 20,21, even if thus when the speed of car 2 or acceleration/accel do not have abnormal, also can judge the exception of elevator, the raising of elevator safety can be realized.
In addition, in above-mentioned example, the quantity of each computer unit 34,35 is set to two, but also the quantity of computer unit can be set to more than three.
Claims (3)
1. a lift appliance, is characterized in that, this lift appliance has:
Car, it can move in hoistway;
Brake equipment, it has restraining coil, produces by stopping described restraining coil energising the braking force braked described car, by stopping producing described braking force to described restraining coil energising; And
Braking force control system, it has the 1st brak control unit and the 2nd brak control unit independent of described 1st brak control unit, 1st brak control unit carries out the control of described braking force to the turn on angle of described restraining coil by adjustment, 2nd brak control unit comprises multiple arithmetic element, according to the information from predetermined detecting unit, the plurality of arithmetic element judges that described elevator has independently without exception, when being judged to be described abnormal elevator, do not carried out the control stopping being energized to described restraining coil by described 1st brak control unit.
2. lift appliance according to claim 1, is characterized in that,
Described detecting unit comprises speed detector, and this speed detector detects the speed of described car,
Arithmetic element described in each is when the deceleration/decel of the described car obtained according to the information from described speed detector exceedes predetermined threshold value, generate along with the time passes through and the speed limit of reduction, when the speed of described car exceedes described speed limit, carry out the control stopping being energized to described restraining coil.
3. lift appliance according to claim 1, is characterized in that,
Described detecting unit comprises: door position detector, and it detects car door and whether is positioned at the position of closing the door closing car gangway; And car position detector, whether it detects described car and is positioned at and carries out to landing doorway the interval of closing the door of opening the door that the stop door of opening and closing and described car door can engage,
Arithmetic element described in each is according to the information respectively from described door position detector and described car position detector, being judged to be that under the state of position of closing the door described in the position deviation of described car door described car is positioned at describedly can open the door when closing the door outside interval, carries out the control stopping being energized to described restraining coil.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2008/072162 WO2010064320A1 (en) | 2008-12-05 | 2008-12-05 | Elevator device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102177083A CN102177083A (en) | 2011-09-07 |
| CN102177083B true CN102177083B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880131508.8A Active CN102177083B (en) | 2008-12-05 | 2008-12-05 | Lift appliance |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2364947B1 (en) |
| JP (1) | JP5653758B2 (en) |
| KR (1) | KR101233558B1 (en) |
| CN (1) | CN102177083B (en) |
| WO (1) | WO2010064320A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101219230B1 (en) * | 2008-12-12 | 2013-01-09 | 미쓰비시덴키 가부시키가이샤 | Elevator safety circuit device |
| CN103803366B (en) | 2013-12-19 | 2016-04-27 | 西子奥的斯电梯有限公司 | A kind of elevator internal contracting brake torque measuring method |
| EP3279124B1 (en) * | 2016-08-02 | 2019-10-02 | Kone Corporation | Method, elevator control unit, and elevator system for dynamically adjusting a levelling speed limit of an elevator car |
| CN109292556B (en) * | 2018-12-11 | 2021-05-25 | 日立楼宇技术（广州）有限公司 | Control method and device of elevator brake, band-type brake power supply and storage medium |
| US11767194B2 (en) * | 2019-01-28 | 2023-09-26 | Otis Elevator Company | Elevator car and door motion monitoring |
| JP7280709B2 (en) * | 2019-02-20 | 2023-05-24 | 株式会社日立製作所 | Elevator and elevator control method |
| JP7132438B2 (en) * | 2019-07-02 | 2022-09-06 | 株式会社日立製作所 | elevator equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007099633A1 (en) * | 2006-03-02 | 2007-09-07 | Mitsubishi Denki Kabushiki Kaisha | Elevator device |
| WO2008136114A1 (en) * | 2007-04-26 | 2008-11-13 | Mitsubishi Electric Corporation | Elevator device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59172369A (en) | 1983-03-16 | 1984-09-29 | 三菱電機株式会社 | Controller for floor reaching of winding drum type elevator |
| JPH07157211A (en) | 1993-12-03 | 1995-06-20 | Mitsubishi Electric Corp | Brake device for elevator |
| JPH11139733A (en) * | 1997-11-07 | 1999-05-25 | Hitachi Ltd | Door control device for elevator |
| WO2007108068A1 (en) | 2006-03-17 | 2007-09-27 | Mitsubishi Denki Kabushiki Kaisha | Elevator device |
| US7931127B2 (en) * | 2006-08-03 | 2011-04-26 | Mitsubishi Electric Corporation | Elevator apparatus |
| WO2008142790A1 (en) | 2007-05-24 | 2008-11-27 | Mitsubishi Electric Corporation | Elevator apparatus |
| CN101687610B (en) * | 2007-06-14 | 2012-07-04 | 三菱电机株式会社 | Elevator |
| WO2009008058A1 (en) * | 2007-07-10 | 2009-01-15 | Mitsubishi Electric Corporation | Elevator |
-
2008
- 2008-12-05 JP JP2010541179A patent/JP5653758B2/en active Active
- 2008-12-05 KR KR1020117005227A patent/KR101233558B1/en active IP Right Grant
- 2008-12-05 CN CN200880131508.8A patent/CN102177083B/en active Active
- 2008-12-05 WO PCT/JP2008/072162 patent/WO2010064320A1/en active Application Filing
- 2008-12-05 EP EP08878580.3A patent/EP2364947B1/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007099633A1 (en) * | 2006-03-02 | 2007-09-07 | Mitsubishi Denki Kabushiki Kaisha | Elevator device |
| WO2008136114A1 (en) * | 2007-04-26 | 2008-11-13 | Mitsubishi Electric Corporation | Elevator device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5653758B2 (en) | 2015-01-14 |
| EP2364947A4 (en) | 2014-05-28 |
| KR20110036645A (en) | 2011-04-07 |
| WO2010064320A1 (en) | 2010-06-10 |
| KR101233558B1 (en) | 2013-02-14 |
| EP2364947A1 (en) | 2011-09-14 |
| JPWO2010064320A1 (en) | 2012-05-10 |
| EP2364947B1 (en) | 2016-08-24 |
| CN102177083A (en) | 2011-09-07 |
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